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Cash and cash equivalents and Investments and Additional information on the consolidated statements of cash flows - Cash flows from purchases, sales and maturities of securities (Details) - ARS ($) $ in Millions | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Cash and cash equivalents and Investments. Additional information on the consolidated statements of cash flows |  |  |
Government bonds acquisition | $ (3,002) | $ (971) | $ (1,049)
Sales of Government bonds | 1,986 | 1,051 |
Government bonds collection | 276 | 165 | 45
Other short-term investments and time deposits | (2,063) | (265) |
Sales of Other short-term investments | 176 |  |
Argentine companies notes collection |  |  | 28
Total | $ (2,627) | $ (20) | $ (976)

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- Definition The cash inflow (outflow) due to a decrease (increase) in short-term deposits and investments. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2017-01-01 -Paragraph 16 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2017-03-01&anchor=para_16&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The cash inflow from sales of investments other than investments accounted for using the equity method. [Refer: Investments accounted for using equity method; Investments other than investments accounted for using equity method] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2017-01-01 -Paragraph 16 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=7&date=2017-03-01&anchor=para_16&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The cash outflow for the purchase of government bonds. + References No definition available. + Details
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- Definition The cash outflow for the purchase of other short-term investments. + References No definition available. + Details
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- Definition The cash inflow from collection of company notes. + References No definition available. + Details
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- Definition The cash inflow on collection of government bonds. + References No definition available. + Details
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